Back propagation

On back propagation topic, video 3(larger neural network example), time: 4.20-4.30. the answer for dj/dw[2] is showing 6, but don’t you think it’s 2?

Thanks for your time.

Please post a screen capture image.
Thanks.

the 4th one from the left

Sorry, I don’t see it.

Can you mark up the image with a big red circle and arrow?